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| author | Inaky Perez-Gonzalez <inaky@linux.intel.com> | 2009-09-14 23:10:16 +0200 |
|---|---|---|
| committer | Inaky Perez-Gonzalez <inaky@linux.intel.com> | 2009-10-19 08:56:02 +0200 |
| commit | 7b43ca708a767a5f68eeeb732c569c0f11a7d6f7 (patch) | |
| tree | 8811c30691a5e4355c56e9b52a7f8fb9fe9108fb /sound/sound_core.c | |
| parent | wimax/i2400m: add reason argument to i2400m_dev_reset_handle() (diff) | |
| download | linux-7b43ca708a767a5f68eeeb732c569c0f11a7d6f7.tar.xz linux-7b43ca708a767a5f68eeeb732c569c0f11a7d6f7.zip | |
wimax/i2400m: cache firmware on system suspend
In preparation for a reset_resume implementation, have the firmware
image be cached in memory when the system goes to suspend and released
when out.
This is needed in case the device resets during suspend; the driver
can't load firmware until resume is completed or bad deadlocks
happen.
The modus operandi for this was copied from the Orinoco USB driver.
The caching is done with a kobject to avoid race conditions when
releasing it. The fw loader path is altered only to first check for a
cached image before trying to load from disk. A Power Management event
notifier is register to call i2400m_fw_cache() or i2400m_fw_uncache()
which take care of the actual cache management.
Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Diffstat (limited to 'sound/sound_core.c')
0 files changed, 0 insertions, 0 deletions